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Engine Cessna 172 With 93 Questions With Correct Verified Answers
When is carbarator icing most likely to happen? - Descents 
When checking the mags, how much should they drop and how much 
of each other? - They should drop no more than 175 and be 
within 50 of each other 
What does no drop mean? - Bad connection 
What 3 things cool the engine? - Oil 
Fuel 
Air 
What is the perfect ratio of fuel to air? - 14.7 air to 1 fuel 
What 3 things does the engine need to operate? - Fuel 
Air 
Spark 
What does it mean for the mixture to be rich? - The dens...